GTAC Observation Log

1. Date : 26/01/2021
2. Observation Sr. No. : 12838
3. Observer : harish k vedantham, Joseph Russell Callingham, Shimwell
4. Observer\'s Email : vedantham@astron.nl, callingham@astron.nl, shimwell@astron.nl
5. Project Name : Unravelling the first radio-selected brown dwarf
6. Project Code : ddtC153
7. Operator(s) : Rupsing, Sachin
8. Command File : /odisk/gtac/cmd/ddtc153/obs.cmd
9. LTA File : /gsbifrdata/26jan/ddtc153_26jan2021_gsb.lta, /gwbifrdata/26jan/ddtc153_26jan2021_gwb.lta
10. LogFlag File :  

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 MHz,ON

GSB SETTINGS :

14. GSB Host : gsbm1_shivneri
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : TGC
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Full_Stokes
21. Beam - 1 : OFF
22. Beam - 2 : OFF
23. ACQ BW : 33.333333 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 256
26. Channel Numbers : 0:255:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 591 591 540 540 51 51
30. Integration Time : 2.0132 Sec
31. No of Antennas Working(Fringing) at the beginning :27

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
C06 : Servo problem.
W02 : Feed problem.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 26 Jan 2021 10:00:00 - 26 Jan 2021 16:00:00

35. ONLINE Machine : TGC

36. No of Antennas Working(Fringing) at the end :26

37. RFI Status :

38. Comments (During Observations) :
10:15:  Started scan on 3C286 for ~ 13.1086 min.
10:42 : Started command file.
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15:32 : Stopped command file due to phase cal and source set
15:40 : C05 No fringe.
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15:45 : Started scan on 3C48.
16:00 : Stopped scan and observation session over.